The RCNA convention, which runs from Aug. 12 to Aug. 17, will feature a 14-guest grading and preservation workshop on the first day, and that workshop is already half full, according to the Calgary Numismatic Society.

It is an all-day seminar that will feature sessions with Brian Cornwell and Susan Maltby, according to the RCNA. The cost is $125 for members and $167 for nonmembers.

To attend the convention and book a spot in this and other seminars, register online.

The Commission of Fine Artsâ recommendation for the Proof 2014 American Eagle platinum coin, left, brought outrage and derision at the Citizens Coinage Advisory Committee meeting. The CCAC recommended the design to the right.

The Commission of Fine Artsâ recommendation for the Proof 2014 American Eagle platinum coin, left, brought outrage and derision at the Citizens Coinage Advisory Committee meeting. The CCAC recommended the design to the right.

The Commission of Fine Artsâ recommendation for the Proof 2014 American Eagle platinum coin, left, brought outrage and derision at the Citizens Coinage Advisory Committee meeting. The CCAC recommended the design to the right.

The Commission of Fine Artsâ recommendation for the Proof 2014 American Eagle platinum coin, left, brought outrage and derision at the Citizens Coinage Advisory Committee meeting. The CCAC recommended the design to the right.

The Commission of Fine Artsâ recommendation for the Proof 2014 American Eagle platinum coin, left, brought outrage and derision at the Citizens Coinage Advisory Committee meeting. The CCAC recommended the design to the right.